Unique features makes the SQ series very easy to install and operate, and ensures reliable water supply at all times.SQ can be installed without the need of any additional control units. The SQ single high speed pumps, are ideally suited for a variety of applications:

Domestic Water Supply

Small water works

Irrigation

Featuring:

Soft start To prevent water hammering and electrical disturbances

High starting torque Even at low supply voltage, the SQ delivers a reliable water supply

Over load protection Protects the motor against unstable voltage supply by reducing speed or stopping the pump

Dry running protection Stops and prevents the pump from damage in case of dry running

Description

Details

Unique features makes the SQ series very easy to install and operate, and ensures reliable water supply at all times.SQ can be installed without the need of any additional control units. The SQ single high speed pumps, are ideally suited for a variety of applications:

Domestic Water Supply

Small water works

Irrigation

Featuring:

Soft start To prevent water hammering and electrical disturbances

High starting torque Even at low supply voltage, the SQ delivers a reliable water supply

Over load protection Protects the motor against unstable voltage supply by reducing speed or stopping the pump

Dry running protection Stops and prevents the pump from damage in case of dry running

Automatic re-start Ensures a reliable water supply when ever possible

Features and Accessories

Product Features

SQ innovative motor technology

SQ pumps feature an innovative motor design incorporating permanent-magnet technology. By combining permanent-magnet motors and a Grundfos micro-frequency converter, we are able to deliver unmatched performance and the ability to control and communicate with the pump in ways never before possible.

SQ pump models operate at a constant speed much like today’s conventional pumps. The difference is that SQ delivers the benefits of an electronically controlled permanent-magnet motor that cannot be achieved with a conventional induction motor.

High motor efficiencyThe motors are based on a permanent magnet rotor (PM motor) featuring high efficiency within a wide load range.

Wear resistanceThe pump design features "floating" impellers (not fastened to the shaft). Each impeller has its own tungsten carbide/ceramic bearing. The construction and materials ensure high wear resistance to sand for long product life.

Protection against upthrustStarting up a pump with a very low counter pressure involves the risk of the entire impeller stack being lifted, also called upthrust. Upthrust may cause breakdown of both pump and motor.SQ motors are fitted with a top bearing protecting both pump and motor against upthrust, thus preventing breakdown during the critical start-up phase.

Excellent starting capabilitiesThe integrated electronic unit of the motor features soft starting. Soft start reduces the starting current and thus gives the pump a smooth and steady acceleration.The soft starter minimizes the risk of wear on the pump and prevents overloading of the mains during start-up.The excellent starting capabilities are a result of the high locked-rotor torque of the permanent magnet motor together with the few pump stages. The high starting reliability also applies in case of low voltage supply.

Overvoltage and undervoltage protection Overvoltage and undervoltage may occur in case of unstable voltage supply.The integrated protection of all motors prevents damage to the motor in case the voltage moves outside the permissible voltage range.The pump will cut out if the voltage falls below 150 V or rises above 315 V. The motor is automatically cut in again when the voltage again falls within the permissible voltage range. Therefore no extra protection relay is needed.

Overload protectionExposure of the pump to heavy load causes the current consumption to rise. The motor will automatically compensate for this by reducing the speed to 3000 rpm. Further overload will lead to stop.If the rotor is being prevented from rotating, this will automatically be detected and the power supply will be cut out. Consequently, no extra motor protection is needed.

Overtemperature protectionA permanent magnet motor gives off very little heat to its surroundings. In combination with an efficient internal circulation system leading the heat away from the rotor, stator and bearings, this ensures optimum operating conditions for the motor.As an extra protection, the electronic unit has a built-in temperature sensor. When the temperature rises too high, the motor is cut out; when the temperature has dropped, the motor is automatically cut in again.

ReliabilityThe motors are built for high reliability and feature:

Tungsten carbide / ceramic bearings

thrust bearings protecting against downthrust

product life time equal to conventional AC motors

Important: Any well with a high static water level may allow the pump to operate off the curve and outside its recommended range. We recommend using a "Dole" flow restriction valve to throttle the pump to prevent upthrust damage to the pump and motor. The maximum flow must be restricted to within the pumps recommended operating range.

Accessories

The Dole® Flow Regulator is self-cleaning and designed to deliver a constant volume of water flow over a wide pressure drop range. The controlling mechanism is a flexible orifice that varies its effective area inversely with applied pressure so that a constant flow rate is maintained.Flow rates will be maintained to within ±15% between 15 and 125 psi. The flow rate varies due to manufacturing tolerances and water temperatures.Valves are chrome or nickle-plated brass with Buna-N orifice.Maximum pressure is 200 psiMaximum temperature is 160°F

The torque arrestor is used to prevent motor start up torque from thrusting the pump against the side of the well casing. Think of it as a shock absorber for your well system.

Placement: The first torque arrestor should be placed 1' or 2' above the pump. Then at intervals of 75' to 100' above the first torque arrestor.Installation: Place the torque arrestor around the drop pipe so that each half is spaced evenly.

Install the lower pipe clamp and tighten.

Install the upper pipe clamp (leave loose) and then push down on the torque arrestor to spread the center portion so it fits the inside of the casing.

Just a snug fit, do not spread it so much that it is hard to get it in the casing. Then tighten the upper clamp. It is very important that the upper clamp is as tight as possible. This will make it easier to remove the pump at a later date.

A Pump Screen provides full protection from Sand and other debris that may be in a traditional well. The Pump screen is a must when setting pumps into ponds, lakes or streams. This protects the pump from moving objects and allows only water to enter the pump chamber.

The Cycle Stop Valve model CSV1A is a pump control valve that automatically adjust pump output to match variable flow requirements. Downstream of the CSV1A pressure remains constant as long as demand is between the upper and lower limits of the valve. The 1" CSV1A handle from 1-25 GPM.

Materials

304 Stainless Steel

Molded Thermoplastic Spring Cage

EPDM with dacron cloth insert diaphragm

Replaceable acetal cartridge

Pressure - Temperature

Max Temperature: 180 F

Max shut off head: 400 psi

Adjustable pressure: 15-150 psi

Max differential pressure: 125 psi

Features

1-25 GPM flow range

Variable flow with reduced pressure

Tank fill rate 1 GPM

All internal parts corrosion resistant and included in a drop in cartridge

PurposeThe lightning arrestor is designed to protect motors and controls from voltage surges caused by lightning, switching loads, or power line interferences. Surges of 500 volts or more are directed to ground by the lightning arrestor. Although the arrestor may or may not take repeated surges, no arrestor can withstand a direct lightning strike or a surge of unusually high voltage.

ApplicationThe Heavy-Duty Models lightning arrestor have Threads and Nut to Attach to Electrical Panel or varieties of enclosed motor controls.Including:WELL PUMP CONTROLS (2 WIRE OR 3 WIRE MOTORS)1. Pressure Switch2. Control Box3. Both the pressure switch and control boxNote: Pressure switch arrestor location offers the best water system protection, if only one lightning arrestor is used.

WARNING: It is very important that all electrical work be done properly. Therefore, only a qualified electrician or electrical service man should perform the initial hook-up and any electrical service thereafter! All local electrical codes must be followed.